<!doctype html>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="resources/is_uuid.js"></script>
<iframe id="i" src="/common/blank.html"></iframe>
<script>
async_test(t => {
  let start_index = navigation.currentEntry.index;
  // The navigations in each window should have only added an navigation to
  // their own window.
  function assertExpectedEntries(entries, expected_url) {
    assert_equals(entries.length, 2);
    assert_not_equals(entries[1].key, entries[0].key);
    assert_not_equals(entries[1].url, entries[0].url);
    assert_not_equals(entries[1].id, entries[0].id);
    assert_true(isUUID(entries[0].key));
    assert_true(isUUID(entries[0].id));
    assert_true(isUUID(entries[1].key));
    assert_true(isUUID(entries[1].id));

    assert_equals(entries[1].url, expected_url);
  }

  // Wait for after the load event so that the navigation doesn't get converted
  // into a replace navigation.
  window.onload = () => t.step_timeout(t.step_func(() => {
    location.hash = "#1";
    i.onload = t.step_func_done(() => {
      assertExpectedEntries(navigation.entries().slice(start_index), location.href);
      assertExpectedEntries(i.contentWindow.navigation.entries(), i.contentWindow.location.href);
    });
    i.contentWindow.location = "/common/blank.html?2";
  }), 0);
}, "navigation.entries() behavior when multiple windows navigate.");
</script>
